The number of pen possessed by x, Y and z is in the ratio 2:4: If the total cost of the pen is tk70 anet the average cost of one pen was Tk. 30, how many pens does Y have?

The number of pen possessed by x, Y and z is in the ratio 2:4: If the total cost of the pen is tk70 anet the average cost of one pen was Tk. 30, how many pens does Y have?

A 8

B 16

C 12

D 15

Solution

Correct Answer: Option C